This piece from Andrew Sullivan's blog at The Atlantic corrects an overly rosy vision of the Jews who live in Iran. They are not a "large community" and probably their position is delicate. Imagine if they'd come out en masse against the regime.
I think it's important to keep their situation in context even as we recognize the fact that the Iranian people are hardly monolithic, that Persian culture and history are worthy of study and respect, and that many Iranians are struggling for their rights.